Big Shark School Backpack 16" by Four Peas Backpack is 16 inches tall, 13 inches wide, and 7.5 inches deep with plenty of room for many books and folders The straps are adjustable and padded and are conveniently attached to the sides of the backpack for easy on and off access. The front pocket is spacious and contains 5 slots for pens or pencils as well as a contact information tag. There are also two pockets, one on each side of the backpack, that have magnetic snaps to secure smaller items. The backpack is made of a 600 denier plus nylon (PVC free) and is extremely sturdy.